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use async_trait::async_trait;

use crate::DatacakeNode;

#[async_trait]
/// An extension of the base node/cluster.
///
/// This can be used to extend a base node to include additional
/// functionality, like the eventually consistent store, multi-raft cluster
/// or anything else which may want to use the membership, rpc and clock system.
pub trait ClusterExtension {
    type Output;
    type Error;

    async fn init_extension(
        self,
        node: &DatacakeNode,
    ) -> Result<Self::Output, Self::Error>;
}